Speaking another language is game changing, it doesn't matter which language it is. It'll make it much easier to learn another language, for example, because you'll get a better grasp of grammar. In fact, that grasp of grammar will help you speak your own language better.
You'll also be more likely to treat people who speak a different language as people rather than things.
I'm not sure if the fall of the US economy will take down other economies. The other economies will adapt. They're already looking at adapting and working together with other economies.
Sadly my upstairs and downstairs neighbours are chain smokers. They close their windows and the balcony doors and I get all the (pot) smoke. Why does Germany have so many smokers?
The Wehrmacht was literally the army. So no, not the FBI.
The SA was a bunch of complete morons that attacked people and caused riots and got so out of hand that the government couldn't handle them anymore. The Gestapo was smart.
My brother lost 24 jobs until he found one with a boss who knew how to deal with him. It didn't help that my mother didn't raise him properly "because he was special" and basically the boss had to teach him things like dressing properly, personal hygiene, and not buggering off on vacation without giving notice.
This is the UK. They don't have arrest quotas. That was a myth spread by the tabloids about 15 years ago.